/* ==============================================================================
*
*   Copyright (c) 2010, Pierre Favier
*   All rights reserved.
*
*   NTasking is free software: you can redistribute it and/or modify it
*   under the terms of the GNU General Public License as published by the
*   Free Software Foundation.
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*   are met:
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using System;
using NTasking.ValidationTests.ACATS_3_0.Support;
using NUnit.Framework;
using Rhino.Mocks;

namespace NTasking.ValidationTests.ACATS_3_0.C9
{

    [TestFixture(Description = "")]
    public class C93005A : ValidationTest
    {

        private static T2 t2 = null;


        private class T1 : ValidationTestTask
        {

            internal T1(IValidationTestResult result)
                : base(result)
            {
            }


            protected override void Body()
            {
                Ada.Declare(() =>
                {
                    new T3(Result);
                },
                Begin: () =>
                {
                });

                t2.E(); // t2 is now terminated

                Console.WriteLine("RENDEZVOUS COMPLETED WITHOUT ERROR - T1");
                Result.TestFailed();
            }
            protected override void Exception(Exception ex)
            {
                if (!(ex is TaskingError))
                {
                    Console.WriteLine("ABNORMAL EXCEPTION - T1");
                    Console.WriteLine(ex);
                    Result.TestFailed();
                }
            }
        }


        private class T2 : ValidationTestTask
        {

            [Entry]
            internal Action E { get; private set; }


            internal T2(IValidationTestResult result)
                : base(result)
            {
            }


            protected override void Body()
            {
                Console.WriteLine("T2 ACTIVATED OK");
                Result.TestFailed();

                // In case of failure
                while (true)
                {
                    Select(s => s.
                        Accept(E).
                    Or.
                        Terminate
                    );
                }
            }

        }


        private class T3 : ValidationTestTask
        {

            internal T3(IValidationTestResult result)
                : base(result)
            {
            }


            protected override void Body()
            {
                try
                {
                    t2.E();

                    Console.WriteLine("RENDEZVOUS COMPLETED WITHOUT ERROR - T3");
                    Result.TestFailed();
                }
                catch (TaskingError)
                {
                }
                catch (Exception ex)
                {
                    Console.WriteLine("ABNORMAL EXCEPTION - T3");
                    Console.WriteLine(ex);
                    Result.TestFailed();
                }
            }

        }


        [Test(Description =
            "CHECK THAT WHEN AN EXCEPTION IS RAISED IN A DECLARATIVE PART, A TASK" +
            "DECLARED IN THE SAME DECLARATIVE PART BECOMES TERMINATED." +
            "" +
            "CHECK THAT A TASK WAITING ON ENTRIES OF SUCH A" +
            "TERMINATED-BEFORE-ACTIVATION TASK RECEIVES TASKING_ERROR.")]
        public void Test()
        {
            IValidationTestResult result = Mocks.DynamicMock<IValidationTestResult>();
            T1 t1;

            Ada.Declare(() =>
            {
                t1 = new T1(result);

                // Setup text expectations

                Expect.Call(result.TestFailed).Repeat.Never();
                Mocks.ReplayAll();

            },
            Begin: outerScope =>
            {
                // Start test execution

                try
                {
                    Ada.Declare(() =>
                    {
                        t2 = new T2(result);

                        // Prematurely start t1 to force t1 and t3 to wait on t2.E
                        outerScope.Activate();

                        // Ensure t1 is waiting on t2 entry
                        Ada.Delay(Impdef.SwitchToNewTask);

                        // Prevent activation of t2
                        throw new NullReferenceException();
                    },
                    Begin: () =>
                    {
                        Console.WriteLine("NO EXCEPTION RAISED");
                        result.TestFailed();
                    });
                }
                catch (NullReferenceException)
                {
                }
                catch (TaskingError)
                {
                    Console.WriteLine("TaskingError in main program");
                    result.TestFailed();
                }
                catch (Exception)
                {
                    Console.WriteLine("ABNORMAL EXCEPTION IN MAIN-1");
                    result.TestFailed();
                }
            });
        }

    }

}
